The soldiers defending York have some amazing new liquid substance which gives them astonishing strength and speed. Two of the soldiers, a short and clever biotrooper with a winged helmet and his tall and big-boned companion, have become heroes of the city and icons of resistance. Brazilians are driven back and are baffled by this unexpected defeat. Emperor Pedro will not be pleased.
Iceland's navy is about 50% carriers (no I'm not gonna calculate the exact percentage), but the rest are somewhat useful ships. They might be able to flip coastal cities for quite a long time.